Giving

use your knowledge of the law of conservation of mass to answer the following question: in the lab, a student reacts lithium with oxygen to produce lithium oxide. (lithium + oxygen > lithium oxide) how much lithium will be needed to react with 5.4 grams of oxygen to produce 24.6 grams of lithium oxide?

It can't be done.

Explanation:

If you have only 5.4 g of oxygen, the most lithium oxide you can get is 7.7 g.

Only 2.3 g of lithium will react. and the other 22.3 g of lithium will not be used.

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.